Urimasu! Manga挑発, 電光石火BOYS , Thunderbolt Boys: Excite , Urimasu! , Waru Amai Mitsu
Kodaka Natsui, a naturally beautiful young boy, and a drop-dead gorgeous rich kid named Ritsu Yasaka both work as models.
One day, their agency requires both boys to attend an overnight retreat. Kodaka decides he wants to become a man worthy of Ritsu, so he begins to undergo training under Ritsu's valet...in more salacious ways than one! When he finds out what's going on, Ritsu can no longer suppress his overwhelming desire.
Side stories in volume 2: